INTEGRATION OF SOLENOID POSITIONING ANTENNAS IN WIRELESS INDUCTIVE CHARGING POWER APPLICATIONS
First Claim
1. An apparatus for determining a position between a wireless power transmitter and a wireless power receiver, the apparatus comprising:
- a ferrite structure; and
a plurality of detection loops formed from metallic traces on a flexible printed circuit wrapped on or around the ferrite structure.
2 Assignments
0 Petitions
Accused Products
Abstract
An apparatus for determining a position between a wireless power transmitter and a wireless power receiver is provided. The apparatus comprises a ferrite structure. The apparatus further comprises a plurality of detection loops formed from metallic traces on a flexible printed circuit wrapped on or around the ferrite structure. Each of the plurality of detection loops comprises a solenoid detection loop. The ferrite structure comprises a first ferrite block and a second ferrite block disposed adjacent to the first ferrite block. A first wireless power transfer coil is wrapped on or around the first ferrite block. A second wireless power transfer coil is wrapped on or around the second ferrite block. Each detection loop of the plurality of detection loops is configured to sense an amount of magnetic flux flowing in a direction normal to a winding plane of the detection loop.
13 Citations
30 Claims
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1. An apparatus for determining a position between a wireless power transmitter and a wireless power receiver, the apparatus comprising:
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a ferrite structure; and a plurality of detection loops formed from metallic traces on a flexible printed circuit wrapped on or around the ferrite structure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for determining a position between a wirelesspower transmitter and a wireless power receiver, comprising:
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for each detection loop of a plurality of detection loops formed from metallic traces on a flexible printed circuit wrapped on or around a ferrite structure, sensing an amount of magnetic flux flowing in a direction normal to a winding plane of the detection loop, and determining the position between the wireless power transmitter and the wireless power receiver based at least in part on the amount of magnetic flux sensed by each of the plurality of detection loops. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A method for fabricating an apparatus for determining a position between a wireless power transmitter and a wireless power receiver, the method comprising:
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providing a ferrite structure, forming a plurality of metallic traces on a flexible printed circuit configurable to be wrapped on or around the ferrite structure to form a plurality of detection loops, and wrapping the flexible printed circuit on or around the ferrite structure. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
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24. An apparatus for determining a position between a wireless power transmitter and a wireless power receiver, the apparatus comprising:
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a plurality of means for sensing, each means for sensing configured to sense an amount of magnetic flux flowing in a direction normal to a winding plane of the means for sensing and formed from a plurality of metallic traces on a flexible printed circuit that is configurable to be wrapped on or around a ferrite structure; and means for determining the position between the wireless power transmitter and the wireless power receiver based at least in part on the amount of magnetic flux sensed by each of the plurality of means for sensing. - View Dependent Claims (25, 26, 27, 28, 29, 30)
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Specification